SOLUTION: Find the slope of each line. Then tell what the slope represents. I I (12,160) Money Earned I (4,80) I I

Question 167945This question is from textbook Texas Algebra 1
: Find the slope of each line. Then tell what the slope represents.
I
I (12,160)
Money
Earned
I (4,80)
I
I
I
IIIIIIIIIIIIIIIIIIIIIII
Time worked
Graph^^^^^^^^^^^
So can someone please tell me how to find the slope from these coordinates.
If this is confusing please email me and let me know and i will explain the question better because i really need help asap This question is from textbook Texas Algebra 1

Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
(4,80)
(12,160)
.
If we assign your two points as:
(x1,y1)=(4,80)
(x2,y2)=(12,160)
Then:
Slope = rise/run = (y2-y1)/(x2-x1)
plugging our numbers:
Slope = (160-80)/(12-4)
Slope = 80/8
Slope = 10
.
This site explains slope:
http://www.purplemath.com/modules/slope.htm

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